#!/usr/local/bin/ksh93 -p
#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
#
# CDDL HEADER END
#

#
# Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
. $STF_SUITE/include/libtest.kshlib

################################################################################
#
# __stc_assertion_start
#
# ID: zfs_destroy_004_pos
#
# DESCRIPTION: 
#	Verify 'zfs destroy -f' succeeds as root.
#
# STRATEGY:
#	1. Create filesystem in the storage pool
#	2. Set mountpoint for the filesystem and make it busy
#	3. Verify that 'zfs destroy' fails to destroy the filesystem
#	4. Verify 'zfs destroy -f' succeeds to destroy the filesystem. 
#
# TESTABILITY: explicit
#
# TEST_AUTOMATION_LEVEL: automated
#
# CODING_STATUS: COMPLETED (2005-08-02)
#
# __stc_assertion_end
#
###############################################################################

verify_runnable "both"

function cleanup
{
	cd $olddir

	datasetexists $clone && \
		log_must $ZFS destroy -f $clone

	snapexists $snap && \
		log_must $ZFS destroy -f $snap

	for fs in $fs1 $fs2; do
		datasetexists $fs && \
			log_must $ZFS destroy -f $fs
	done

	for dir in $TESTDIR1 $TESTDIR2; do
		[[ -d $dir ]] && \
			log_must $RM -rf $dir 
	done
}

log_assert "Verify that 'zfs destroy -f' succeeds as root. " 

log_onexit cleanup

#
# Preparations for testing
#
olddir=$PWD

for dir in $TESTDIR1 $TESTDIR2; do
	[[ ! -d $dir ]] && \
		log_must $MKDIR -p $dir
done

fs1=$TESTPOOL/$TESTFS1
mntp1=$TESTDIR1
fs2=$TESTPOOL/$TESTFS2
snap=$TESTPOOL/$TESTFS2@snap
clone=$TESTPOOL/$TESTCLONE
mntp2=$TESTDIR2

#
# Create filesystem and clone in the storage pool,  mount them and
# make the mountpoint busy
#
for fs in $fs1 $fs2; do
	log_must $ZFS create $fs
done

log_must $ZFS snapshot $snap
log_must $ZFS clone $snap $clone

log_must $ZFS set mountpoint=$mntp1 $fs1
log_must $ZFS set mountpoint=$mntp2 $clone

for arg in "$fs1 $mntp1" "$clone $mntp2"; do
	fs=`$ECHO $arg | $AWK '{print $1}'`
	mntp=`$ECHO $arg | $AWK '{print $2}'`

	log_note "Verify that 'zfs destroy' fails to" \
			"destroy filesystem when it is busy." 
	cd $mntp
	log_mustnot $ZFS destroy $fs

	log_must $ZFS destroy -f $fs 
	datasetexists $fs && \
		log_fail "'zfs destroy -f' fails to destroy busy filesystem."

	cd $olddir
done

log_pass "'zfs destroy -f' succeeds as root."
